166575255510577 has 8 divisors (see below), whose sum is σ = 175361242628160. Its totient is φ = 157791155233680.

The previous prime is 166575255510563. The next prime is 166575255510623. The reversal of 166575255510577 is 775015552575661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166575255510577 - 2³⁹ = 166025499696689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166575255510877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471528949 + ... + 471882082.

It is an arithmetic number, because the mean of its divisors is an integer number (21920155328520).

Almost surely, 2^{166575255510577} is an apocalyptic number.

It is an amenable number.

166575255510577 is a deficient number, since it is larger than the sum of its proper divisors (8785987117583).

166575255510577 is an equidigital number, since it uses as much as digits as its factorization.

166575255510577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943420343.

The product of its (nonzero) digits is 385875000, while the sum is 67.

The spelling of 166575255510577 in words is "one hundred sixty-six trillion, five hundred seventy-five billion, two hundred fifty-five million, five hundred ten thousand, five hundred seventy-seven".